<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="iconfont/iconfont.css">
    <style>
        i.iconfont{
            font-size: 50px;
        }
        p::before{
            content: '\e69b';
            font-family: iconfont;
            font-size: 100px;
        }
    </style>
</head>
<body>
    <i class="iconfont">&#xe69b;</i>

    <i class="iconfont icon-back">&#xe69b;</i>

    <p>hello</p>
</body>
</html>